brake fluid LEXUS RX450H 2016 User Guide

4816-3. Do-it-yourself maintenance
6
Maintenance and care
RX450h_U_OM0E013U
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.
■Adding fluid
Make sure to check the fluid type and prepare the necessary item.
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency. Use
only newly opened brake fluid.
Brake fluid
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel
WARNING
■When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean water
immediately.
If you still experience di scomfort, see a doctor.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear out or
when the fluid level in the accumulator is high.
If the reservoir needs frequent ref illing, there may be a serious problem.

5357-2. Steps to take in an emergency
7
When trouble arises
RX450h_U_OM0E013U
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points higher than nor-
mal
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the hybrid system
●Engine missing, stumbling or running roughly
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost touches the floor
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

5367-2. Steps to take in an emergency
RX450h_U_OM0E013U
If a warning light turns on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspecte d by your Lexus dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer. Continuing to drive the vehicle may be dangerous.
Brake system warning light
Indicates a malfunction in:
• The regenerative braking system;
• The electronically controlled brake system; or
• The electric parking brake
 Have the vehicle inspected by your Lexus dealer immediately.
(If equipped)
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer. Continuing to drive the vehicle may be dangerous.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
 Have the vehicle inspected by your Lexus dealer immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
 Have the vehicle inspected by your Lexus dealer immediately.

5888-1. Specifications
RX450h_U_OM0E013U
*: The fluid capacity is a reference quantity. If replacement is necessary, contact your Lexus dealer.
*: The fluid capacity is a reference quantity. If replacement is necessary, contact your Lexus dealer.
*: Minimum pedal clearance when depressed wi th a force of 110 lbf (490 N, 50.0 kgf)
while the hybrid system is operating.
Hybrid transmission
Fluid capacity*5.1 qt. (4.8 L, 4.2 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid ot her than “Toyota Genuine ATF WS” may ultimately damage
the hybrid transmission of your vehicle.
Rear differential (Rear electric motor) (AWD models)
Fluid capacity*1.9 qt. (1.8 L, 1.6 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid ot her than “Toyota Genuine ATF WS” may ultimately damage
the hybrid transmission of your vehicle.
Brakes
Pedal clearance*3.7 in. (95 mm) Min.
Brake pad wear limit0.04 in. (1.0 mm)
Pedal free play0.04 — 0.24 in. (1.0 — 6.0 mm)
Fluid typeFMVSS No. 116 DOT 3 or SAE J1703

641Alphabetical index
RX450h_U_OM0E013U
Anchor brackets ........................................ 61
AntennaSmart access system with push-button start ................... 158
Anti-lock Brake System (ABS)........ 381 Warning light .......................................537
Approach warning.....................318, 330
Armrest .................................................... 443
Assist grips .............................................. 444
Audio system
*
Automatic air conditioning system .................................................... 405 Air conditioning filter......................... 501
Automatic air conditioning system ................................................. 405
S-FLOW mode ............................... 406
Automatic headlight leveling system .................................................... 253
Automatic High Beam ....................... 255
Automatic light control system.........251
Auxiliary boxes ...........................426, 430
Back door Power back door .................................142
Touchless power back door ......... 144
Wireless remote control ..................142
Back-up lights Replacing light bulbs ......................... 513
Wattage ................................................. 590 Battery (12-volt battery)
Battery checking ................................483
If the 12-volt battery is discharged........................................ 568
Preparing and checking before winter....................................................390
Warning light .......................................536
Battery (traction battery) ..................... 80
Blind Spot Monitor (BSM) ............... 363 Blind Spot Monitor function ............................................367
Rear Cross Traffic Alert function ............................................. 371
Bottle holders .........................................425
Brake Brake Hold ........................................... 249
Fluid ......................................................... 588
Parking brake ...................................... 245
Regenerative braking ......................... 78
Warning light .......................................536
Brake assist ...............................................381
Brake Hold...............................................249 Warning light ....................................... 537
Break-in tips ........................................... 206
Brightness control Instrument panel light control ........ 99
BSM (Blind Spot Monitor) ............... 363 Blind Spot Monitor function......... 367
Rear Cross Traffic Alert function.................................................. 371
B
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

645Alphabetical index
RX450h_U_OM0E013U
EngineACCESSORY mode...................... 233
Compartment......................................475
Engine switch ....................................... 232
Hood ........................................................ 473
How to start the hybrid system .................................................. 232
Identification number ...................... 583
If your vehicle has to be stopped in an emergency ..........529
Ignition switch (power switch) .... 232
Overheating .........................................574
Power switch........................................ 232
Engine coolant Capacity ................................................ 587
Checking................................................ 479
Preparing and checking before winter ................................... 390
Engine coolant temperature gauge .........................................................97
Engine oil Capacity ................................................ 585
Checking................................................ 476
Preparing and checking before winter ................................... 390
Engine oil maintenance data ........... 478
Engine switch ......................................... 232
Enhanced VSC ...................................... 381
EPS (Electronic Power Steering) ......... 381 Warning light .......................................537
EV drive mode....................................... 237
EV indicator ............................................... 78
Event data recorder (EDR) .................... 11 Flat tire ...................................................... 549
Floor mats................................................... 28
Fluid
Brake....................................................... 588
Transmission ....................................... 588
Washer ................................................... 482
Fog lights Replacing light bulbs .........................513
Switch ...................................................... 259
Front passenger footwell hooks.......................................................442
Front passenger occupant classification system ............................. 51
Front passenger’s seat belt reminder light ..................................... 538
Front seat heaters .................................. 415
Front seats ................................................. 164 Adjustment..............................................164
Cleaning................................................. 462
Correct driving posture .................... 30
Driving position memory................. 174
Head restraints ..................................... 179
Power easy access system ............. 174
Seat heaters ............................................415
Seat position memory ....................... 174
Front side marker lights Light switch............................................. 251
Replacing light bulbs .........................513
Wattage ................................................ 590F

658Alphabetical index
RX450h_U_OM0E013U
Warning lightsABS...........................................................537
Brake hold operated indicator ..............................................537
Brake system....................................... 536
Charging system............................... 536
Electric power steering...................537
LDA indicator ......................................537
LKA indicator.......................................537
Low fuel level ...................................... 538
Malfunction indica tor lamp .......... 536
Master warning light........................ 538
Parking brake indicator ..................537
PCS warning light ............................ 538
Seat belt reminder light.................. 538
Slip indicator .........................................537
SRS ........................................................... 536
Tire pressure ....................................... 538
Warning messages .............................. 543
Washer Checking................................................482
Low washer fluid warning message .............. 482, 543
Preparing and checking before winter ................................... 390
Switch.......................................... 260, 265
Washing and waxing........................... 458 Weights
Cargo capacity.........................212, 582
Load limits .................................. 216, 582
Weights ..................................................582
Wheels ..................................................... 499 Replacing wheels .............................. 499
Size .......................................................... 589
Window glasses......................................189
Window lock switch..............................189
Windows Power windows................................... 189
Rear window defogger ..................409
Washer .......................................260, 265
Windshield wiper de-icer ................. 409
Windshield wiper inserts .................. 504
Windshield wipers ............................... 260 Rain-sensing windshield wipers................................................... 260
Replacing a windshield wiper insert .....................................................504
Winter driving tips ............................... 390